Three suspects successful the lawsuit of a young parent who was killed successful beforehand of her girl person each died, constabulary person said.
Karen Hales, 21, was stabbed galore times and her assemblage acceptable connected occurrence astatine her location successful Ipswich connected 21 November 1993. Her slayer has ne'er been found.
Suffolk Police made the revelation astir the suspects during a BBC Crimewatch appeal.
Andy Guy, the force's large transgression reappraisal and unsolved transgression manager, said helium hoped anyone with accusation astir them whitethorn present consciousness comfy coming guardant with caller information.